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Right Triangle Review Sheet. OBJ: •Solve for sides and angles in right triangles. A 79.6 C 2.2 B. S OH C AH T OA cos = Adj Hyp 16. cos(79.6 ) = 2.2 c (AB) 2.2/cos(79.6 ) = c 12.2 = c
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Right Triangle Review Sheet OBJ: •Solve for sides and angles in right triangles
A 79.6 C 2.2 B SOHCAHTOA cos = Adj Hyp 16. cos(79.6) = 2.2 c (AB) 2.2/cos(79.6) = c 12.2 = c 17. tan = Opp Adj tan(79.6) = b (AC) 2.2 2.2 tan(79.6°) = b 12.0 = b 18. A = 10.4 (12.22 – 122) = 2.2 EX: Solve: B = 79.6
A b c C aB SOHCAHTOA tan = Opp Adj tan = 7 9 A = tan-1(7/9) = 37.9° 19. If a = 7 and b = 9, find mA to the nearest tenth of a degree.
A b c C aB SOHCAHTOA tan = Opp Adj tan = 4.7 1.8 B = tan-1(4.7/1.8) = 69.0° 20. If a = 1.8 and b = 4.7, find mB to the nearest tenth of a degree.
A b c C aB SOHCAHTOA tan = Opp Adj tan = 18 7 B = tan-1(18/7) = 68.7° (68°40') 21. If a = 7 and b = 18, find mB to the nearest tenth of a degree.
A c 57.5° 355 B a C SOHCAHTOA tan = Opp Adj tan(57.5°) = a 355 355(tan57.5°) = a = 557.2 cos = Adj Hyp cos(57.5°) = 355 c c = 355/cos(57.5°) = 660.7 B = 32.5° (660.72 – 557.22) = 355.0 22) A = 57.5; b = 355
A 63° c b B 9.7 C SOHCAHTOA tan = Opp Adj tan(63°) = 9.7 b 9.7/(tan63°) = b = 4.9 sin = Obj Hyp sin(63°) = 9.7 c c = 9.7/sin(63°) = 10.9 B = 27.0° (10.92 – 4.92) = 9.7 23) A = 63; a = 9.7